[kps]

The Telnet Song from CACM, April 1984: http://delivery.acm.org/10.1145/1040000/1035691/p347-steele.... Plain text at http://alcor.concordia.ca/~smw/home/telnet_song.html and no doubt elsewhere.

(This does not refer to the Unix version of telnet, which defaults to ^] as the default escape character.)